Home / 104,620.61-144,445.93-80,378.37

Finding the Fourth Proportional to 104,620.61, 144,445.93 and 80,378.37

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Solution

The fourth proportional to 104,620.61, 144,445.93 and 80,378.37 is: 110,975.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,620.61 : 144,445.93 = 80,378.37 : x
  2. Step 2: Convert to fraction form
    104,620.61/144,445.93 = 80,378.37/x
  3. Step 3: Cross multiply
    104,620.61x = 144,445.93 × 80,378.37
  4. Step 4: Simplify right side
    104,620.61x = 11,610,328,205.59
  5. Step 5: Solve for x
    x = 11,610,328,205.59/104,620.61
  6. Step 6: Final answer
    x = 110,975.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.